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Time information detection method of output signal of satellite synchronization time service device

A technology for time information and output signal, applied in the direction of clock driven by synchronous motor, synchronization, circuit device, etc., can solve the problem that it is difficult to confirm the correctness of B code time information, difficult to detect serial message time information, and difficult to determine time information. Absolute time and other issues, to achieve the effect of being conducive to safe production and stable operation, and ensuring accuracy

Active Publication Date: 2011-01-26
STATE GRID HUBEI ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

This method is not easy to determine the absolute time of the captured time information, so it is not easy to confirm the correctness of the B code time information corresponding to the second pulse signal, and it is not easy to detect the time information of the serial message

Method used

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  • Time information detection method of output signal of satellite synchronization time service device
  • Time information detection method of output signal of satellite synchronization time service device
  • Time information detection method of output signal of satellite synchronization time service device

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing, invention is further described:

[0042] As a comparison, the following briefly introduces the traditional satellite synchronous timing device test method, such as figure 1 Shown in is the traditional satellite synchronous timing device test device and connection diagram.

[0043] exist figure 1 Among them, the pulse signal P_1pps output by the satellite synchronous standard clock 49 can be synchronized with the satellite time and can also be provided by an internal standard source; the satellite synchronous standard clock 49 and the oscilloscope 2 form the testing equipment; the satellite synchronous timing device 3 is the tested equipment. figure 2 It is a schematic diagram of the oscilloscope waveform under the traditional test method.

[0044] figure 1 Among them, the pulse signal output by the pulse signal output terminal 4 of the satellite synchronous standard clock 49 is connected to the detection channel A of t...

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Abstract

The invention relates to a time information detection method of an output signal of a satellite synchronization time service device. The method comprises the following steps of: setting output opening time T of a pulse signal output end (4) of a controllable timing mark signal source (1) and setting the output opening time T as an on-time trigger mode; outputting a pulse initiation 1pps synchronous to a satellite at a given time T (27) in cooperation with the controllable timing mark signal source (1); and triggering an oscilloscope (2) to capture the output signal of the satellite synchronization time service device (3) so as to finish the time information detection of a serial message of the satellite synchronization time service device and the detection of the correctness of B code time information of the satellite synchronization time service device. The method is a detection method which can more comprehensively test the technical performance of the satellite synchronization time service device of a power network sub-station, thus the time synchronization accuracy of secondary equipment can be ensured better.

Description

[0001] This application is a divisional application with the title of invention: time information detection method for output signal of satellite synchronous timing device, application date is 2008-6-12, application number is 2008100479896 technical field [0002] The invention relates to a method for testing electric equipment, in particular to a method for detecting time information of an output signal of a satellite synchronous timing device using satellite signals for time synchronization of electric equipment. Background technique [0003] The time synchronization performance of the grid's substation (including substations, power plants) automation system telecontrol and other related electrical secondary intelligent electronic devices (IEDs) requires an accuracy of milliseconds and above. The time synchronization performance of secondary equipment is directly related to the correctness of the operation within the sub-station (local) and between sub-stations (off-site), ...

Claims

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Application Information

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IPC IPC(8): G04G7/00G04G7/02G06F1/12H02J13/00G04R40/06
Inventor 陈宏潘杨
Owner STATE GRID HUBEI ELECTRIC POWER RES INST
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